Space combat generally induces an Adrenalin rush which can cause comm lines to become frantic, disorganized, and useless. Use of a radiotelephoney spelling alphabet is a useful framework to allow a pilot to better focus while in combat. Which is why it is widely used in military, aviation, maritime, and emergency services.
Repeat out loud this alphabet and numbering system three time daily until using it becomes second nature.
Alphabet:
A – Alfa
B – Bravo
C – Charlie
D – Delta
E – Echo
F – Foxtrot
G – Golf
H – Hotel
I – India
J – Juliett
K – Kilo
L – Lima
M – Mike
N – November
O – Oscar
P – Papa
Q – Quebec
R – Romeo
S – Sierra
T – Tango
U – Uniform
V – Victor
W – Whiskey
X – X-ray
Y – Yankee
Z – Zulu
Numbers are also standardized:
1 – Wun
2 – Too
3 – Tree
4 – Fower
5 – Fife
6 – Six
7 – Seven
8 – Ait
9 – Niner
0 – Zero